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Hi Allen, my name is Jason.
Will the engine stay running if you pump the primer bulb over and over and over?
Are you able to run the boat now to try doing that?
Got it. Well, based on what you wrote it sounds like the fuel pump is out. When you pump the bulb what you are doing is forcing fuel through the pump, and on to the rest of the fuel system. This can be tested on land with a vacuum gauge. To test it, what would need to happen is you would pump the bulb until it firms up. Disconnect the fuel line from the fuel pump. Install a vacuum gauge in its place. Start the engine up, and let it idle. The fuel pump should generate 5 to 7 inches of mercury pretty quickly, within 10 seconds. If it does not, the pump is bad. Does that make sense to you?
Can you tell where the clicking is coming from?
Mercurys are cataloged by serial number, can you get me the serial number on the engine, I can look up the pump, and get you a part number and actual cost.
I wouldn't know that without being in front of the motor myself. Can you take a video with sound and upload it to youtube?